{"product_id":"fanuc-sram-from-for-0i-a-0i-mate-a-a20b-2902-0411","title":"Fanuc SRAM\/FROM for 0i-A\/ 0i Mate-A A20B-2902-0411","description":"\u003ch3 data-start=\"0\" data-end=\"93\"\u003e📌 \u003cstrong data-start=\"7\" data-end=\"93\"\u003e\u003cspan class=\"entity-underline hover:entity-accent inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eFANUC A20B‑2902‑0411\u003c\/span\u003e\u003c\/span\u003e — 6 MB Flash ROM + 256 KB SRAM Memory Module\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"95\" data-end=\"286\"\u003e\u003cstrong data-start=\"95\" data-end=\"111\"\u003eDescription:\u003c\/strong\u003e\u003cbr data-start=\"111\" data-end=\"114\"\u003eThe \u003cstrong data-start=\"118\" data-end=\"136\"\u003eA20B-2902-0411\u003c\/strong\u003e is a \u003cstrong data-start=\"142\" data-end=\"168\"\u003ecombined memory module\u003c\/strong\u003e used in FANUC CNC control systems. It includes both \u003cstrong data-start=\"221\" data-end=\"241\"\u003eFlash ROM (FROM)\u003c\/strong\u003e and \u003cstrong data-start=\"246\" data-end=\"267\"\u003estatic RAM (SRAM)\u003c\/strong\u003e on a single board:\u003c\/p\u003e\n\u003cul data-start=\"288\" data-end=\"570\"\u003e\n\u003cli data-start=\"288\" data-end=\"427\"\u003e\n\u003cp data-start=\"290\" data-end=\"427\"\u003e🧠 \u003cstrong data-start=\"293\" data-end=\"307\"\u003eFlash ROM:\u003c\/strong\u003e \u003cstrong data-start=\"308\" data-end=\"336\"\u003e6 MB non-volatile memory\u003c\/strong\u003e used to store the CNC controller’s firmware, system code, and essential program storage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"428\" data-end=\"570\"\u003e\n\u003cp data-start=\"430\" data-end=\"570\"\u003e💾 \u003cstrong data-start=\"433\" data-end=\"442\"\u003eSRAM:\u003c\/strong\u003e \u003cstrong data-start=\"443\" data-end=\"464\"\u003e256 KB static RAM\u003c\/strong\u003e used as working memory for runtime data, buffering, and parameters. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"572\" data-end=\"841\"\u003eThis memory module is part of the \u003cstrong data-start=\"606\" data-end=\"619\"\u003eA20B-2902\u003c\/strong\u003e product family and typically fits into the \u003cstrong data-start=\"663\" data-end=\"708\"\u003ememory subsystem of FANUC CNC controllers\u003c\/strong\u003e, especially older or mid-generation systems such as \u003cstrong data-start=\"761\" data-end=\"793\"\u003eSeries 16, 18, and 21-series\u003c\/strong\u003e machines. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"843\" data-end=\"864\"\u003e\u003cstrong data-start=\"843\" data-end=\"862\"\u003eFunction \u0026amp; Use:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"865\" data-end=\"1406\"\u003e\n\u003cli data-start=\"865\" data-end=\"1065\"\u003e\n\u003cp data-start=\"867\" data-end=\"1065\"\u003eActs as \u003cstrong data-start=\"875\" data-end=\"897\"\u003ecore system memory\u003c\/strong\u003e — the controller uses the Flash ROM to load essential firmware and the SRAM as operational memory while the machine is running. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1066\" data-end=\"1190\"\u003e\n\u003cp data-start=\"1068\" data-end=\"1190\"\u003eWithout this module installed and correctly loaded with the required files, the CNC \u003cstrong data-start=\"1152\" data-end=\"1187\"\u003ecannot boot or operate normally\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1191\" data-end=\"1406\"\u003e\n\u003cp data-start=\"1193\" data-end=\"1406\"\u003eThis module is commonly \u003cstrong data-start=\"1217\" data-end=\"1241\"\u003ereplaced or upgraded\u003c\/strong\u003e when the CNC loses stored programs, faults on memory errors, or requires more storage than the original memory board provided. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1408\" data-end=\"1430\"\u003e\u003cstrong data-start=\"1408\" data-end=\"1428\"\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1431\" data-end=\"1874\"\u003e\n\u003cli data-start=\"1431\" data-end=\"1711\"\u003e\n\u003cp data-start=\"1433\" data-end=\"1711\"\u003e🔄 After installing or replacing this module, you \u003cstrong data-start=\"1483\" data-end=\"1544\"\u003emust reload all FROM files, parameters, and part programs\u003c\/strong\u003e from backup into the CNC — because the SRAM portion is volatile and the Flash ROM may not contain the machine’s specific data. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1712\" data-end=\"1874\"\u003e\n\u003cp data-start=\"1714\" data-end=\"1874\"\u003eAvailability may vary; some suppliers do \u003cstrong data-start=\"1755\" data-end=\"1793\"\u003enot accept core exchange or repair\u003c\/strong\u003e on this part, so confirm with your vendor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JJAutomation","offers":[{"title":"New","offer_id":44703524323464,"sku":"A20B-2902-0411","price":0.0,"currency_code":"INR","in_stock":true},{"title":"Used \/ Refurbished","offer_id":46109835755656,"sku":"A20B-2902-0411","price":0.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/1903\/3224\/files\/WhatsAppImage2025-10-18at1.47.49PM-2026-01-20T161826.850.jpg?v=1768906114","url":"https:\/\/jjautomation.in\/products\/fanuc-sram-from-for-0i-a-0i-mate-a-a20b-2902-0411","provider":"JJAutomation","version":"1.0","type":"link"}